Known plaintext - XOR

20 Points  0x0

For this challenge you will need to decypher a simple XORed picture.

Author

Ryscrow,  

Level  Difficulty

Validations

5295 Challengers 3%

Note  Notation

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245 Votes

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 5 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
thib_info   Clair connu - XOR 25 May 2020 at 19:15
zenza   Clair connu - XOR 24 May 2020 at 17:35
Yaxxine   Clair connu - XOR 23 May 2020 at 18:15
seriousCnam   Clair connu - XOR 22 May 2020 at 20:15
Jh0n   Known plaintext - XOR 22 May 2020 at 16:39
SchizoBoy   Clair connu - XOR 22 May 2020 at 15:59
hachore   Clair connu - XOR 22 May 2020 at 14:44
Florimondla   Clair connu - XOR 22 May 2020 at 14:11
Sgt4chan   Known plaintext - XOR 21 May 2020 at 20:17
Spiritum7787   Clair connu - XOR 20 May 2020 at 22:52

 49 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 46463 5 Xartrick 10
pas_valide Encoding - UU 21% 36666 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 37207 5 g0uZ 6
pas_valide Hash - SHA-2 11% 18976 5 koma 4
pas_valide Shift cipher 7% 11548 10 m31z0nyx 8
pas_valide Pixel Madness 6% 9120 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5028 15 Lu33Y 10
pas_valide File - PKZIP 4% 6847 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8727 15 Arod 4
pas_valide Known plaintext - XOR 3% 5295 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2023 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5618 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5886 20 Arod 3
pas_valide System - Android lock pattern 3% 3787 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3571 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 548 25 Tie21 1
pas_valide AES - ECB 1% 1490 25 cez40 4
pas_valide LFSR - Known plaintext 1% 404 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2474 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 771 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1683 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2052 25 koma 6
pas_valide Initialisation Vector 1% 1117 25 manticore, notfound404 5
pas_valide GEDEFU 1% 367 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 186 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 843 30 sambecks 1
pas_valide RSA - Common modulus 1% 862 30 franb 2
pas_valide Service - Hash length extension attack 1% 537 30 koma 1
pas_valide AES - 4 Rounds 1% 138 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 107 35 Jrmbt 1
pas_valide RSA - Padding 1% 156 35 Tosh 0
pas_valide RSA - Signature 1% 48 35 s4r 0
pas_valide AES128 - CTR 1% 442 40 Tosh 1
pas_valide Discrete logarithm problem 1% 600 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 128 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 63 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 743 40 franb 3
pas_valide AES - Fault attack #1 1% 74 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 127 50 peyman 1
pas_valide ECDHE 1% 136 60 Tosh 2
pas_valide RSA - Lee cooper 1% 51 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 755 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 277 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 99 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 44 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 73 75 Revenger 1
pas_valide AES - Fault attack #2 1% 52 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 18 100 Tosh 0